bfd-liveness-detection
Syntax
Hierarchy Level
Release Information
Statement introduced before JUNOS Release 7.4.
detection-time threshold and transmit-interval threshold options introduced in JUNOS Release 8.2.
local-address statement introduced in JUNOS Release 8.2.
minimum-receive-ttl statement introduced in JUNOS Release 8.2.
Support for logical routers introduced in JUNOS Release 8.3.
holddown-interval statement introduced in JUNOS Release 8.5.
no-adaptation statement introduced in JUNOS Release 9.0.
Support for IPv6 static routes introduced in JUNOS Release 9.1.
authentication algorithm, authentication key-chain, and authentication loose-check statements introduced in JUNOS Release 9.6.
Description
Configure bidirectional failure detection timers and authentication criteria for static routes.
Options
authentication algorithm algorithm-name —Configure the algorithm used to authenticate the specified BFD session: simple-password, keyed-md5, keyed-sha-1, meticulous-keyed-md5, or meticulous-keyed-sha-1.
authentication key-chain key-chain-name—Associate a security key with the specified BFD session using the name of the security keychain. The name you specify must match one of the keychains configured in the authentication-key-chains key-chain statement at the [edit security] hierarchy level.
authentication loose-check—(Optional) Configure loose authentication checking on the BFD session. Use only for transitional periods when authentication may not be configured at both ends of the BFD session.
detection-time threshold milliseconds—Configure a threshold. When the Bidirectional Forwarding Detection (BFD) protocol session detection time adapts to a value equal to or greater than the threshold, a single trap and a single system log message are sent.
holddown-interval milliseconds—Configure an interval specifying how long a BFD session must remain up before a state change notification is sent.
- Range: 0 through 255,000
- Default: 0
local-address ip-address—Enable a multihop BFD session and configure the source address for the BFD session.
minimum-interval milliseconds—Configure the minimum intervals at which the local routing device transmits a hello packet and then expects to receive a reply from the neighbor with which it has established a BFD session.
- Range: 1 through 255,000
minimum-receive-interval milliseconds—Configure the minimum interval at which the local routing device expects to receive a reply from a neighbor with which it has established a BFD session.
- Range: 1 through 255,000
minimum-receive-ttl number—Configure the time-to-live (TTL) for the multihop BFD session.
- Range: 1 through 255
- Default: 255
multiplier number—Configure number of hello packets not received by the neighbor that causes the originating interface to be declared down.
- Range: 1 through 255
- Default: 3
neighbor address—Configure a next-hop address for the BFD session for a next hop specified as an interface name.
no-adaptation—Specify for BFD sessions not to adapt to changing network conditions. We recommend that you not disable BFD adaptation unless it is preferable not to have BFD adaptation enabled in your network.
transmit-interval threshold milliseconds—Configure a threshold. When the BFD session transmit interval adapts to a value greater than the threshold, a single trap and a single system log message are sent. The interval threshold must be greater than the minimum transmit interval.
- Range: 0 through 4,294,967,295
transmit-interval minimum-interval milliseconds—Configure the minimum interval at which the local routing device transmits hello packets to a neighbor with which it has established a BFD session.
- Range: 1 through 255,000
version—Configure the BFD protocol version to detect.
- Range: 1 or automatic
- Default: automatic (autodetect the BFD protocol version)
The remaining statements are explained separately.
Required Privilege Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
